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Figure 5 | BMC Cancer

Figure 5

From: MicroRNA-100 is a potential molecular marker of non-small cell lung cancer and functions as a tumor suppressor by targeting polo-like kinase 1

Figure 5

Effects of siRNA targeting PLK1 on growth, apoptosis and cell cycle of NSCLC cells. (A) RT-PCR and Western Blot analysis of PLK1 mRNA and protein expression in A549-siRNA/PLK1 or A549-siRNA/control cells. (B) MTT analysis of growth in A549 cells at different time points (0, 24, 48, 72 or 96h) after transfection with siRNA/PLK1 or siRNA/control. (C) Hoechst staining analysis of apoptosis in A549/miR-100 or A549/miR-NC cells. The percentage of Hoechst-positive nuclei per optical field (at least 50 fields) was counted. (D) Flow cytometric analysis of cell cycle distribution in A549-siRNA/PLK1 or A549-siRNA/control cells. * and ** indicate P < 0.05 and P < 0.01, respectively. Each experiment was performed at least in triplicate. Corresponding P values analyzed by t-tests are indicated.

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